Alternate Parcel Header Structure - Call-Level Interface Version 2

Teradata® Call-Level Interface Version 2 Reference for Workstation-Attached Systems - 20.00

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
Lake
VMware
Product
Call-Level Interface Version 2
Release Number
20.00
Published
January 2024
Language
English (United States)
Last Update
2024-05-14
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Product Category
Teradata Tools and Utilities
The parcel APH fields are as follows:
Field Purpose
PclFlavor (Flavor) The size remains 2-byte; however, the most significant bit (MSB) of the 2-byte flavor is set to indicate that an alternate parcel header is being sent from the client to the server.
PclLength (Length) Reserved: This is the existing length field in the old parcel header. The size is 2-byte. This field should always be set to zero.
PclAltLength (AltLength) This is the new field of 4-byte size, included in alternate parcel header. The numeric value in this field describes the actual parcel length.